Developed for coating and lining storage tanks, piping, scrubbers, and processing equipment in the chemical industry, the Master Bond Polymer System EP21ARHT is designed to provide outstanding chemical, fuel, and acid resistance.
The two-component epoxy can withstand immersion to 96-98% sulfuric acid and 20% hydrochloric acid for more than a year, according to manufacturer Master Bond Inc.
Suitable for coating, lining or sealing, the product cures at room temperature with minimal shrinkage, or more rapidly at elevated temperatures. Once fully cured, it produces a bond strength greater than 2,200 psi, the company says.
Features and Performance
EP21ARHT can be thermally cycled over the wide temperature range of -60ºF to +400ºF. This system features electrical insulation capabilities with a dielectric strength of 440 volts/mil and a low coefficient of thermal expansion of 40-45x10-6 in/in/ºC. EP21ARHT is designed to bond well to metals, ceramics, glass and many plastics.
The product offers a non-critical 2-to-1 mix ratio by weight and is color coded, with part A being clear and part B amber. It is available in pint, quart, gallon and 5-gallon container kits.
Master Bond Inc., based in Hackensack, NJ, manufactures high-performance adhesives, sealants, coatings, potting and encapsulation compounds and impregnation resins. The company’s products consist of epoxies, polyurethanes, silicones, acrylics, polyamides and latex systems, as well as specialties like anaerobics and cyanoacrylates.